256184460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{203321}}^1$

素因数の和:203343

約数の個数: 72

約数和(自身を含む): 888110496

約数和(自身を除く): 631926036

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 203321, 406642, 609963, 813284, 1016605, 1219926, 1423247, 1829889, 2033210, 2439852, 2846494, 3049815, 3659778, 4066420, 4269741, 5692988, 6099630, 7116235, 7319556, 8539482, 9149445, 12199260, 12809223, 14232470, 17078964, 18298890, 21348705, 25618446, 28464940, 36597780, 42697410, 51236892, 64046115, 85394820, 128092230, 256184460]

約数ペア:

[(1, 256184460), (2, 128092230), (3, 85394820), (4, 64046115), (5, 51236892), (6, 42697410), (7, 36597780), (9, 28464940), (10, 25618446), (12, 21348705), (14, 18298890), (15, 17078964), (18, 14232470), (20, 12809223), (21, 12199260), (28, 9149445), (30, 8539482), (35, 7319556), (36, 7116235), (42, 6099630), (45, 5692988), (60, 4269741), (63, 4066420), (70, 3659778), (84, 3049815), (90, 2846494), (105, 2439852), (126, 2033210), (140, 1829889), (180, 1423247), (210, 1219926), (252, 1016605), (315, 813284), (420, 609963), (630, 406642), (1260, 203321)]